Heat and Mass Transfer The heat is transferred by conduction, convection and radiation in Melting of ice Boiler furnaces None of these Condensation of steam in condenser Melting of ice Boiler furnaces None of these Condensation of steam in condenser ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number) n, where n is equal to -1 =-2/3 =-1/3 1 -1 =-2/3 =-1/3 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A non-dimensional number generally associated with natural convection heat transfer is Prandtl number Weber number Nusselt number Grashoff number Prandtl number Weber number Nusselt number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fouling factor is used None of these In heat exchanger design as a safety factor In case of Newtonian fluids When a liquid exchanges heat with a gas None of these In heat exchanger design as a safety factor In case of Newtonian fluids When a liquid exchanges heat with a gas ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as Forced convection Radiation Free convection Conduction Forced convection Radiation Free convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the Reynold's number Grashoff's number Prandtl number, Grashoff's number Reynold's number, Grashoff's number Reynold's number Grashoff's number Prandtl number, Grashoff's number Reynold's number, Grashoff's number ANSWER DOWNLOAD EXAMIANS APP
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